期刊
PROGRESS IN AEROSPACE SCIENCES
卷 89, 期 -, 页码 40-57出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.paerosci.2016.12.004
关键词
Non-linear aeroelasticity; High aspect-ratio wings; Flexible structures; Geometric non-linearities; Computational aeroelasticity
资金
- Portuguese Science Foundation FCT, through IDMEC, under LAETA [UID/EMS/50022/2013]
Current economic constraints and environmental regulations call for design of more efficient aircraft configurations. An observed trend in aircraft design to reduce the lift induced drag and improve fuel consumption and emissions is to increase the wing aspect-ratio. However, a slender wing is more flexible and subject to higher deflections under the same operating conditions. This effect may lead to changes in dynamic behaviour and in aeroelastic response, potentially resulting in instabilities. Therefore, it is important to take into account geometric non-linearities in the design of high aspect-ratio wings, as well as having accurate computational codes that couple the aerodynamic and structural models in the presence of non-linearities. Here, a review on the state-of-the-art on non-linear aeroelasticity of high aspect-ratio wings is presented. The methodologies employed to analyse high aspect-ratio wings are presented and their applications discussed. Important observations from the state-of-the-art studies are drawn and the current challenges in the field are identified.
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